I have this calc. it's approved for the FE/EIT test. It is soo different from the sharp I used in college (in the 90's)...1/2 the thickness & weight, a fraction of the cost AND more functionality! so much so that here I am watching this entire series on it!
The fx-115ES Plus 2nd Edition has nine variables and each can store a value between -1E9 and 1E9 with floating decimal. There is also Answer and Previous Answer storage. Stored values don't persist in memory after the calculator is powered off. This unit is non-programmable. Hope this helps.
